original.name="While_Invalid_20"
======
>>> main.whiley
type nat is (int x) where x >= 0
property same(int[] arr, int n) -> (bool r):
return n < 1 || (n <= |arr| && all { i in 1..n | arr[i-1] == arr[i] })
function create(int start, int end) -> (int[] result)
requires start < end
ensures same(result,|result|) && |result| == (end - start):
//
nat i = 1
nat length = (end - start)
int[] items = [0;length]
//
while i < length
where |items| == length && same(items,i):
items[i] = items[i-1]
i = i + 1
// Done
return items
public export method test():
//
assume create(0,1) == [0]
assume create(0,2) == [0,0]
assume create(0,3) == [0,0,0]
---
E724 main.whiley 16,25:27